diff --git a/compose.yml b/compose.yml
index fc2fbf96c..d9ee92b84 100644
--- a/compose.yml
+++ b/compose.yml
@@ -1,4 +1,3 @@
-version: "3"
 services:
   windows:
     image: dockurr/windows
diff --git a/readme.md b/readme.md
index fdcbf1882..be1a38a96 100644
--- a/readme.md
+++ b/readme.md
@@ -28,7 +28,6 @@ Windows in a Docker container.
 Via Docker Compose:
 
 ```yaml
-version: "3"
 services:
   windows:
     image: dockurr/windows